- check path length, simplify error conditions

git-svn-id: https://gnunet.org/svn/gnunet@34280 140774ce-b5e7-0310-ab8b-a85725594a96
- indentation, fix old(er) gcc compilation warnings "may be uninitialized"

git-svn-id: https://gnunet.org/svn/gnunet@34281 140774ce-b5e7-0310-ab8b-a85725594a96
- remove dead code

git-svn-id: https://gnunet.org/svn/gnunet@34282 140774ce-b5e7-0310-ab8b-a85725594a96